gtk2_ardour/shuttle_control.h

   1 /*
   2     Copyright (C) 2011 Paul Davis
   3
   4     This program is free software; you can redistribute it and/or modify
   5     it under the terms of the GNU General Public License as published by
   6     the Free Software Foundation; either version 2 of the License, or
   7     (at your option) any later version.
   8
   9     This program is distributed in the hope that it will be useful,
  10     but WITHOUT ANY WARRANTY; without even the implied warranty of
  11     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12     GNU General Public License for more details.
  13
  14     You should have received a copy of the GNU General Public License
  15     along with this program; if not, write to the Free Software
  16     Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  17 */
  18
  19 #ifndef __gtk2_ardour_shuttle_control_h__
  20 #define __gtk2_ardour_shuttle_control_h__
  21
  22 #include <gtkmm/drawingarea.h>
  23
  24 #include "gtkmm2ext/binding_proxy.h"
  25
  26 #include "pbd/controllable.h"
  27 #include "ardour/session_handle.h"
  28
  29 namespace Gtk {
  30         class Menu;
  31 }
  32
  33 #include "ardour/types.h"
  34
  35 class ShuttleControl : public Gtk::DrawingArea, public ARDOUR::SessionHandlePtr
  36 {
  37   public:
  38         ShuttleControl ();
  39         ~ShuttleControl ();
  40
  41         void map_transport_state ();
  42         void update_speed_display ();
  43         void set_shuttle_fract (double);
  44         double get_shuttle_fract () const { return shuttle_fract; }
  45         void set_session (ARDOUR::Session*);
  46
  47         struct ShuttleControllable : public PBD::Controllable {
  48                 ShuttleControllable (ShuttleControl&);
  49                 void set_value (double);
  50                 double get_value (void) const;
  51
  52                 void set_id (const std::string&);
  53
  54                 ShuttleControl& sc;
  55         };
  56
  57         boost::shared_ptr<ShuttleControllable> controllable() const { return _controllable; }
  58
  59   protected:
  60         float  shuttle_max_speed;
  61         float  last_speed_displayed;
  62         bool   shuttle_grabbed;
  63         double shuttle_speed_on_grab;
  64         float shuttle_fract;
  65         boost::shared_ptr<ShuttleControllable> _controllable;
  66         cairo_pattern_t* pattern;
  67         ARDOUR::microseconds_t last_shuttle_request;
  68         PBD::ScopedConnection parameter_connection;
  69         Gtk::Menu*        shuttle_unit_menu;
  70         Gtk::Menu*        shuttle_style_menu;
  71         Gtk::Menu*        shuttle_context_menu;
  72         BindingProxy      binding_proxy;
  73
  74         void build_shuttle_context_menu ();
  75         void show_shuttle_context_menu ();
  76         void shuttle_style_changed();
  77         void shuttle_unit_clicked ();
  78         void set_shuttle_max_speed (float);
  79
  80         bool on_button_press_event (GdkEventButton*);
  81         bool on_button_release_event(GdkEventButton*);
  82         bool on_scroll_event (GdkEventScroll*);
  83         bool on_motion_notify_event(GdkEventMotion*);
  84         bool on_expose_event(GdkEventExpose*);
  85         void on_size_allocate (Gtk::Allocation&);
  86         bool on_query_tooltip (int, int, bool, const Glib::RefPtr<Gtk::Tooltip>&);
  87
  88         gint mouse_shuttle (double x, bool force);
  89         void use_shuttle_fract (bool force);
  90         void parameter_changed (std::string);
  91
  92         void set_shuttle_units (ARDOUR::ShuttleUnits);
  93         void set_shuttle_style (ARDOUR::ShuttleBehaviour);
  94
  95         int speed_as_semitones (float, bool&);
  96         int fract_as_semitones (float, bool&);
  97
  98         float semitones_as_speed (int, bool);
  99         float semitones_as_fract (int, bool);
 100 };
 101
 102 #endif /* __gtk2_ardour_shuttle_control_h__ */